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Патент USA US3049034

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Aug. 14, 1962
Filed Feb. 5. 1959
2 Sheets-Sheet l
` /Z/JLPH Lussk/N
4 TTOzA/Ev/
Aug. 14, 1962
Filed Feb. s, 1959
2 sheets-sheet 2
/Zouß LussK/N
Lm N S, Lusskm/
RALPH Lussk//v
ilnited States Patent @time
Harold Lusskin, Lillian S. Lusskin, and Ralph Lusskin,
all of 41 W. 70th St., New York, N.Y.
Filed Feb. 3, 1959, Ser. No. 790,879
1 Claim. (Cl. 74--S9)
This invention relates to tools and, more particularly,
to a hand operated mechanical tool.
There are many instances when it is either necessary
or desirable -to use a hand operated tool of the type em
ploying a rotating element, such as a drill bit or screw
driver bit. In certain types of these situations, it is awk
ward or diihcult to use any such tool that requires the
use of ‘both hands of the operator, such as in the c-ase
where it is necessary to hold the object upon which the
tool is working ,with the other hand, such as in the case
Patented Aug. 14, 1962
a sleeve 25 integral with the free end of the base arm 15.
As is more clearly shown in FIGURE 4 of the drawing,
a pair of diametrically opposite and radially inwardly ex
tending pins 26 secured to the sleeve 2.5 are received within
this annular groove 23 of the shaft 20, thus rotatably se
curing the shaft therein. The opposite end of the shaft
20 is provided with an integral collar 28 that adjustably
supports a chuck 29 therein which is operated by means
of a key 30, whereby a tool element may be selectively
clamped therewithin.
With reference now more specifically to FIGURE 3 of
the drawing, the finger arm 18 is provided with an up
wardly opening yoke 34 at its free end. This yoke 34 acts
as a cradle for receiving the intermediate portion of the
shaft 20 therewithin. As is also noted in FIGURE 2 of
the drawing, the mid section of the shaft 20 is provided
with a helical guide groove 36 into which `follower pins 35
of inserting pins into bone structure during orthopedic
carried on opposite sides of the yoke 34 project. Thus,
treatment. It is therefore an object of the present inven~
tion to provide a hand tool embodying a rotating element
that can 'be conveniently operated Iwith one hand, that is
in response to relative movement between the `arms 15, 13,
simple in construction, eñi‘cient in operation, and which
can also be used for precision work.
Another object of the present invention is to provide a
manually operated tool having a rotating shaft that is se
lectively actuated in response to a squeezing action upon
a pair of arms drivingly connected thereto.
the follower pins 35 of `the yoke 34 traveling through the
helical guide groove 36 effect rotational movement of the
shaft 20. This rotational movement is, of course, irn
parted to the chuck 29 and any tool element supported
In FIGURE 7 of the drawing, a slightly modified form
of shaft construction 40 is shown «wherein one end thereof
is similarly provided with an annular groove 41 that re
A further object of the present invention is to provide
ceives the diametrically inwardly extending pins 26 of the
«a manually operated tool of the type described in which
sleeve 25 of the base arm 15. The opposite end of this
the rotating shaft has a chuck at one end for adjustably 30 shaft also supports the chuck 29 within the integral collar
securing a tool element thereto.
28. However, the intermediate portion of ythis shaft 40
A further object of the present invention is to provide
is provided with `a first helical groove 4Z yand an additional
a hand tool of the above type in which the rotating shaft
helical groove 44 which encompass the shaft in opposite
includes a longitudinal bore communicating with the in
directions. Thus, `by such conventional spiralling struc
terior of the chuck, whereby elongated surgical pins can
ture associated with known types of follower pins, it is
be adjustably secured therein for insertion into one tis
possible to provide a single direction of rotation of shaft
40 and the tool element carried by the chuck 29.
All of the foregoing and still further objects and advan
In both embodiments of the present invention, it will
tages of this invention will «become apparent from a study
#be noted that the tool element is rotated during both the
of the following specification, taken in connection with
opening and closing movements of the arms 15, 18. The
the accompanying drawing, wherein:
convoluted torsion spring 12 tends to return the ‘arms ‘15,
18 toward the open position shown in FIGURE l, so that
made in accordance with the present invention;
after the arms have been manually squeezed together to
FIGURE 2 is an enlarged fragmentary cross sectional
the closed position, as shown in FIGURE 2, the release
view7 with parts broken away, of certain parts of the ap 45 of pressure thereon will enable the torsion spring 12 to
paratus shown in FIGURE 1 in an actuated position;
return them to the open position, whereby the unit will
FIGURE 1 is `a side elevational view of a hand tool
FIGURE 3 is a transverse cross sectional view taken
be ready for the next cycle of operation.
along line 3-«3 of FIGURE 2;
While this tool can be used for substantially any purpose
in which it is necessary to provide a rotary tool `action
50 with a single hand operation, one particular use therefor
along line 4_4 of FIGURE 2;
FIGURE 5 is a perspective view of the tool shown in
is illustrated in FIGURE 6 of the drawing. A surgical
pin 45 is inserted into the longitudinal bore 22 of the
FIGURE 6 is a perspective view of the tool shown in
shaft 20, 40, and extends outwardly through the chuck
FIGURE 1 illustrating one type of use therefor; and
29 which may be used to clamp it in any desired out
FIGURE 7 is a side elevational view, similar to FIG- 55 wardly extended position. The physician may then grasp
URE l, showing a slightly modiñed form of construction.
the patient’s limb with one hand and with the other
Referring now to the drawing, and more particularly
hand can actuate the tool to impart the necessary rotary
to FIGURES 1 to 5 thereof, a manually operated tool 10
`action to the pin 45 to drive it into the bone tissue. After
4made in accordance with the present invention is shown
the pin has been inserted the desired amount, it can be
to include a convoluted torsion spring 1‘2 formed from 60 cut in a conventional manner. If desired, yany other type
spring wire having one end 13 connected to a base arm
of tool element may be secured within the chuck 29, such
15 and the opposite end 14 thereof connected to a ñnger
as a screw driver bit, drill bit, or the like. While the di
arm 18. These arms 15, 18 are thus pivotally secured at
rection of rotation of the shaft is continuously alternated
one end for relative movement with respect to each other
`because of the constant drive connection between the arms
in a substantially common plane. The base arm 15 has 65 and the shaft during both the opening and closing move
an indent 16 for positioning the thumb of a hand, while
ments of the arms, certain types of drill bits can be used
the finger arm 18 has a plurality of smaller indents 19 for
to cut in both directions of rotation, while other types
positioning the lingers of the hand therein.
of tool elements can Ibe used Iby proper manipulation of
A shaft 2t) made in accordance with one form of the
the tool, such as lby partial withdrawal during the opening
present invention is provided lwith a longitudinal bore 22 70 movement of the arms.
FIGURE 4 is a transverse cross sectional view taken
that extends completely therethrough. An annular groove
23 at one end of the shaft 20 is rotatably supported within
While this invention has been described with particular
reference to the construction shown in the drawing, it is
able with said spiral grooving to effect rotation of the
shaft in response to relative movement in either direction
of the base arm »and linger arm, and chuck means secured
to the other end of said shaft for clampingly supporting
Having thus described our invention, we claim as new
and desire to secure by Letters Patent:
Ul a working tool for rotation with said shaft, said shaft
having a longitudinal bore therethrough and communicat
A hand tool comprising a Ibase arm and a iinger arm
ing with the axial opening in the chuck means.
normally diverging from each other, a spring connection
between corresponding lower ends of said «anrns for rela
References Cited in the file of this patent
tive inward 4movement `against spring pressure on ap
plication ofiinger pressure, a cylindrical shaft having
to 'be understood that such is not to lbe construed as
imparting limitations upon the invention, which is best de
fined by the claim appended hereto.
spiral grooving inter-mediate the ends, a bearing ring car
ried by the upper end of said base arm for one end of
said shaft and means between said ring and shaft to
prevent axial sliding of said shaft therein, said finger arm
at the upper end thereof having follower means engag
Blaisdell _____________ __ May
McMillin ____________ __ June
Johnston _____________ __ Dec.
Kilcup ______________ __ Nov.
Murad etal ___________ __ June
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